Motion-picture mechanism.



N. T. NILSSON.

MOTION PICTURE MECHANISM. APPLICATION FILED IIAR.3. I9I7.

Patented Nov. 6, 1917.

2 SHEETSSHEET 1.

n W r mm WW I 5 0 9 m Witness;

N. T. NILSSON.

MOTION PICTURE MECHANISM.

APPLICATION FILED MAR. 3,197- 1,245,493? Patented Nov. 6, 1917.

2 SHEETS-SHEET 2.

fnv enior: Niall-020115 T Nzlsson NICHOLAUS T. NIIJSSON, OF CHICAGO,ILLINOIS.

Mo'rI'oN-P'IoTUnE MECHANISM.

Specification of LettersPatent.

Patented Nov. 6, 19 17.

Ap Iijca tian-med March-3, 191 7. Serial-No. 152,379.

To all whom 'z't'm ag comm.-

Be it known that LN iononA'us T. NILss'oN, a citiz'enof the UnitedStates,-and a resident of Chicago, in the county of Cook and State ofIllinois, have invented certain new and useful Tmprovements in MotionPicture Mechanism, of which the following, when taken in connection withthe'drawings accom panying and forming a part hereof, is aspecification.

This invention relates to mechanism adapted to be installed in a cabinetarranged to display projected motion pictures; said cabinet designed tobe used in homes and in public places before small audiences; and to usethe well known 'film picture's which are now employed, in motion picturemachines.

The object of this invention is to obtain mechanism which, wheninstalled in a cabinet, may be manipulated from one 'side of the cabinetto insert or-re'm'ove the iilin used and also to adjust the film so thatthe picture projected there-from will be focused and directed to itsdetermined position on a screen, curtain or plate.

A further object is to obtain mechanism of the kind named which willconsist of few parts or members seeonn'ected as not to get out of'orderor adjustment.

And a further object is to obtain mechani'sm of the kind named which isreadily unders'tood and operable by persons not particularly skilled inmotion picture machines.

I have illustrated mechanism embodying this invention the drawingsaccompanying and forming a part hereof in which- Figure 1 is a sideelevation, and V Fig. '2, is a vertical section on line of Fig. 1 viewedin the direction indicated by the arrows.

' A reference character applied to designate a given part indicatess'aid part throughout the several figures of the drawing wherever thesame appears.

A, Fig. 2 represents a potion of a side wall of a cabinet.

B, represents a base which is secured to side wall A.

G, represents a standard extending from base B, to and supportingbearings D, and E; and G represents a standard also extending frombase Bto and supporting a film actuating sprocket wheel and related parts.

F, represents a shaft re'tatably meumed in i a ss' l G representsale-shutter am of the insenanismand is illustrated as rotatably mountedin bearing E. H, represents a shutter which is provided with suitableopenings, as h, and is rigidly secured to the upper, and squared end 9,of shaft G. I, J, are beveled gear wheels which are rigidly secured toshafts F, and G respectively, so as to intermesh.

K represents a wheel or pulley rigidly secured to shaft F. A belt, (notshown) on wheel K drives said wheel, thereby rota-ting the shaft F,which is the driving shaft turnmg the shaft G, shutter H and the severalmechanisms about to be described. I

M is a beater which is adjustably mounted on shaft F and actuatedthereby to give a step by step movement to the picture film (Z) when themachine is operated.

Beater M, may be turned on shaft F to adjust it relative to said shaftand shutter H, by means of the manually operable wheel 4 (mounted on armm), and gears in m Gears m" and m intermesh and said gear m is attachedto the beater M by screw m".

N is a gear which is rigidly attached to shaft F.

O is an idler loosely mounted on spindle O and provided with gear teethintermeshing with gears N and P, to communicate motion of said gear N togear P.

Gear P is a member of the mechanism which draws the picture film Z fromspool X.

and delivers it to spool Y. g is a belt pass ing over the pulley L andpulley y to actuate spool Y. Y

The connection between pulley 11 and spool Y is by means of the ordinaryfriction disks, whereby as the spool is filled no undue strain is put onthe film and at the same time it is tightly wound on the spool; but assaid connection forms no part of this invention it is not illustrated ordescribed.

Z is an idler for film Z. l

The film actuating mechanism is mounted on the spindle R, and consistsof drum Q. which is provided with sprocket teeth 9', the rollers S, S,(rotatably mounted in frames T), and said frames. The gear P is alsoloosely mounted on spindle R and is rigidly secured to the drum Q.

Frame T consists of a base t, which is provided with hub t, the members6, which are hinged to base 6 by the spindles U, and the spring a.

The sealers S are rotatably mounted in members t". The spindle R issecured in hub t. The hub t is inserted in the end of standard C and isadjustable by turning it to one or the other direction and secured inits angular-1y adjusted position in said standard. as by set screw u.

To adjust the picture film so that the pic- 7 tures projected therefromwill appear between determined lines on the curtain or screen, the hub tof frame T is turned in the end of the standard C, to move said framesay from the position thereof which is illustrated by full lines in Fig.1 toward, and if necessary to the position thereof which is indicated bybroken linesin said figure.

The spring u yieldingly holds members t" in the positions which areillustrated in the drawing, thereby holding the film, Z, (Fig. 1), onthe sprocket teeth but said'members may be turned on pintle U, to permitthe removal of said film from the sprocket wheel and the placing of anadditional onethereon.

V are projecting lenses, V a condenser and V a lamp. 1V is a film guidecomprising two members which are pivotally joined by pintle \V and theupper one thereof yieldingly held closed on to the lower one by springlV", (see Fig. 2). The members of guide TV are provided with apertures\V, which register when the members thereof are closed,'and with therecesses \V, (see Fig. 2) through which the film extends.

The members of guide \V are separated by turning the upper one of saidmembers on intle \V a ainst the resilienc of spring P b y WV when it isdesired to insert a film. in or to remove a film from said guide.

. U is an extension of bearing D, which is rigidly attached to saidbearing, to form the supporting member of the lens V, condenser V, andguide TV. I

U" is a reflecting mirror and V V" are lines respectively indicating thedirection of a ray of light from lens V to mirror U" and from thence toa screen or curtain.

It will be observed that the film Z is drawn from the spool X bysprocket wheel Q, (said film passing over the idler Z which ispositioned between said sprocket wheel and spool), and from saidsprocket wheel the film is looped around the lamp V", and condenser Vbefore entering guide TV; and said film, after leaving said guide\V,passes over the beater M to said sprocket wheel Q, and from thence tospool Y, on which it is wound by belt y turning said spool. The filmbeing drawn from spool X and feed to spool Y by a single sprocket wheel,(Q), whatever size is given tothe loop of the film betweensaid sprocketwheel and said guide, as last above described, will remain constantduring the entire operation of "transferring the film from said spool Xto spool Y. 7 ,i l

The belt driving pulley K is designed to be driven by an electric motorand after a "film has been placed on the spools X, Y,

sprocket wheel Q and in guide W, as herdinbefore described, the lamp V"lighted condenser V and lens V adjusted, and focused, with the member Tcarrying rollers Sf adjusted to direct the projection of the film toproper position on the screen, said motor may be started and the motionpictures desired thereby obtained.

I claim:

1. Motion picture mechanism comprising a spindle, a sprocket memberadapted to actuate a picture film rotatably mounted on said spindle anda gear secured to said sprocket member, in combination with a standard,a roller supporting member con-- sisting of a base mounted on saidstandard concentric with said sprocket wheel, and

roller carriers pivotally attached to said,

base, rollers rotatably mounted in said carriers to operatively co-actwith said sprocket member, means to yieldlngly holdsaid carriers withsaid rollers in operative position,-

said base movable in said standard to obtain angular adjustment of saidrollers on said sprocket member, and means to retain said base in itsadjusted position.

2. Motion picture mechanism comprising a rotatably mounted shaft, abeater on said shaft a gear rigidly secured to said shaft, 11 spindle, asprocket member adapted to actuate a picture film rotatably mounted onsaid spindle, a gear secured to said sprocket member, and an additionalgear intermeshing with said first named gears, in combinghave a picturefilm in operative contact therewith on'oppositesides thereof, andaetuate said film in opposite directions, rotatably mounted on saidspindle and a gear secured to said sprocket member, in com-' binationwith a guide for said film positioned to receive said film between thepoints of contact thereof with said sprocketwheel, a standard supportingmember con-- sisting of a base mounted on said standard" concentric withsaid sprocket wheelwan roller carriers pivotally attached to said base,rollers rotatably mounted in said carriers to operatively co-act withsaid sprocket member, means to yieldingly hold said car-- riers withsaid rollers in operative position, said base movable in said standardto obtain angular adjustment of said rollers, on said sprocket memberand means to retain said base in its adjusted position.

a. Motion picture mechanism comprising a rotatably mounted shaft, abeater and a sprocket mechanism respectively connected to said shaft tobe actuated thereby, and film spools, in combination with a film guide,a lamp, a condenser and a lens, said 15 sprocket mechanism arranged todraw a film from one of said spools and to deliver said film around saidlamp and condenser to said guide, and to operatively co-act with saidbeater to d aw said film through said guide 20 in a step by stepmovement and deliver it to the other of said spools, and said sprocketmechanism adjustable to position said film in said guide.

NICHOLAUS T. NILSSON. In the presence oit' CHARLES TURNER BROWN, J.SOUDDER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. 0.

